At the age of 22, after another failed relationship, I moved into a large house with a pair of women. They made no secret of the fact that they were lesbians. Sally was the older more dominant one. She was 24 years old, about 5'8" tall, slightly on the thick set side, but not fat. Her hair was short and a dark brown. She had a pleasant enough face, closer to plain than pretty, and a bust that looked to be about a 36C. Jenny was quite different she was 22 years old, 5'4" tall. A very pretty with long curly blond hair almost down to her boobs. She was slim and I guessed her boobs were a shapely 34B. Sally inherited the property from her grandmother. She quickly found that she could not afford to run and maintain the house. That's where I came in, I had known Jenny all through school and even saw her around through college. Then I heard that she needed a house mate. Obviously they were looking for another woman. The fact that they were openly gay seemed to put off other women from joining them. I was crashing on a mates couch and when I heard of the room going I asked Jenny if I could have it. I met with Sally and Jenny and we talked and eventually agreed on a rent and a few house rules. Then I moved in. My room was directly next to theirs and I lay awake wondering what they were doing when I heard them making love. They seemed to have a session about every third night and I must admit to having a tug whilst laying there listening. The living arrangements were working out fine and I was helping with what repairs I was able to do. I met a new girl and we were soon dating. I asked Sally and Jenny if it was ok for Tanya to stay over occasionally. They both said that they were fine with it. Tanya was a little apprehensive that I was living with a pair of women until I told her that they were gay. Then she was worried they might hit on her. I pointed out that they would have no interest in her as she was straight. After her first stay she was ok with the arrangements and even got close with Sally and Jenny. This arrangement had been going on for over two years, when Tanya informed me that speaking with Jenny she discovered that the pair wanted a baby. They had been to several adoption agencies abut were rejected. Then they started going to sperm banks, but found that the cost was above their means. I joked that I would donate mine for free. That fell on deaf ears. I had seen both Sally and Jenny in just bra's and panties on a number of occasions and would have fancied giving a donation to either in person, but of the two Jenny would have been my choice. Then about four months later I was talking with Jenny and Sally joined us. The talk turned to babies and that they longed for one of their own. Again I joked that I would be more than happy to donate my sperm. Two weeks had past on the conversation when Sally caught me just before work and asked was I serious about donating my sperm. I told her I was, so long as there was no financial comeback on me. That evening Sally and Jenny came to me with a contract that Sally had drawn up that stated that I would not be held financially or in any other way responsible for the baby, if one was produced. Tanya wasn't very happy about it, but eventually went along with it so long she was present when the deed was done. I gave Sally my donation and she immediately put it inside Jenny. It didn't work. The following month during her most fertile period I donated a further three loads. Again it failed to produce a baby. I could see the desperation in Jenny's eyes. Then I offered to provide my donation directly in person into Jenny's sweet body. Sally and Jenny talked it over and said yes as long as Tanya was ok with it. She would only go along with it as long as she was present. So it was decided on the first day that Jenny was fertile the four of us would get together and I would do the deed. No pressure then. The evening was a hot one when we met in Sally and Jenny's bedroom. Jenny removed her panties and laid on the bed. I was having a hard time getting an erection with three women watching me trying to wank my cock hard. Even the sight of Jenny' s beautiful pussy with her blond pubic bush wasn't doing it for me. Tanya said she would suck me if it would get it over with. She licked and sucked me for a few minutes and finally I was hard enough and I climbed between Jenny's legs and did the business so to speak. It was rather mechanical and as soon as I had dumped my load in Jenny, Tanya pulled me from the room. That night Tanya had me fuck her twice, I guess it was to reclaim my cock for herself. Two nights later I was alone in the house with Jenny. I asked how was things. Silly really as she wouldn't know yet if we were successful. She said she had her fingers and every thing else crossed. I told her that if it hadn't worked I was happy to try again. She thanked me and then told me that it was the first time she had a mans penis inside her. In her younger days she had seen and touched a few, but it was her first time to be penetrated by one. I asked how it had been. She said it felt good, but with Sally and Tanya watching she couldn't really try to enjoy it. I offered to do it again with her, so she could enjoy it. We ended up in my bedroom. This time I removed her clothes and got to see her shapely, but small, titties. Then she wanted to examine my cock. It was almost full size as she stroked and looked at it. Then to my surprise she licked it and then sucked it into her mouth as she had seen Tanya do. I was now rock hard and had to stop Jenny or my load would have been wasted. I lay Jenny on her back on my bed and went down on her pussy sucking and licking it. I kept it up all through her first orgasm. As I licked I fondled her titties. I eventually slid up her body and sucked them. Then I nuzzled her neck and ears. To my surprise she was moaning very loudly at my love making abilities. Then I had her kneel on the bed in the doggy position and slowly slipped my cock into her pussy from behind. It felt wonderful. I was slowly sliding in and out giving Jenny my full length and then almost removing it before the next thrust. No prying eyes to put us off. Jenny's moans got even louder. As I sped up Jenny was rocking back to receive my cock as deep as possible. Then it happened, Jenny was shaking all over as her orgasm washed over her, and her pussy tightened on my cock. Then my cock swelled as it pumped my seed deep inside Jenny's tight pussy. After recovering we dressed and returned to the lounge and was watching a film when Sally returned. Jenny missed her next period and nine months later I was in the hospital waiting for the news. Jenny had a little girl, 7 lb 4oz's. I never told Tanya of our liaison and Jenny never told Sally. Things if they can with a new baby went back to normal. Eventually Tanya left me for another man. She had been cheating on me. Tessa, their baby was nearly two when Sally came to me and told me that they would like a second baby. I assumed wrongly that Jenny would have it, but no she was the one to have the second baby she informed me. She asked if I could do the deed. I agreed, after all it's not everyday that you get to fuck a lesbian. We spent six months with me fucking Sally on the days she was fertile, and Jenny watching. Like the first time with Jenny, it was panties off lay down, climb on, pump cum and then leave. It didn't work, Sally never fell pregnant and I was getting fed up with the mechanical process. Then I was overjoyed when Sally asked me could I try and get Jenny pregnant again. I agreed. Again it was their mechanical wham bam thank you ma'am. Two days later Jenny and I took the day off and without Sally being there I fucked her all around the house the first two times in the lounge, the third in my room and the last in their room. I made love to her, not just fucking her. kissing her, sucking her tits and pussy and fucking her in four different positions. Each time pumping my seed deep inside Jenny's tight little pussy. Nine months later Jenny had a little boy, Luke. He was 7 lb. 9oz's. Again Sally never knew of our liaison. Although I met a fabulous woman, that I married, we still live with Sally and Jenny. I am uncle to the children and help to raise them. I just wish that they would like a third child.