Wife and her sister

I knew Cheryl during our two years dating was quite uninhibited with sex. I knew she'd had about 15 other guys, and 2 affairs with women. One was a girl her age at 18, and other at 16 was a woman in her 40s. There was nothing left undone with her sexually. She was up for anything I could think of. She loved public sex often we'd go to hedonist resorts, nudist resorts, even swing clubs. Cheryl is lovely at 32 still. Nice C cups with dark nipples, beautiful body and face. She is blonde on top and brown below but is now waxed. She is definitely a 3 hole girl and quite slutty which I love. In Amsterdam she wanted to see the hooker area, and with all the semi nude and nude girls in the windows. She was lifting her skirt without panties showing her pussy and ass to the hookers then showing them her tits. She would leave her blouse open her tits hanging out, and lift her skirt up to her waist and walk through the streets. We did get several offers for money for her to have sex, though we make sure things are safe before we do anything with others.

Back at home her sister was staying with us for a month interviewing for various jobs etc. Cheryl was explaining all we did over there, and the weekend before we were at a swing club and she was giving her sister Kate, all the graphic details. Kate is probably more beautiful that Cheryl. She too is a brunette with a trimmed bush, B cup tits with light pink nips and shapely legs. She isn't dyed blonde on top, her long brunette hair will drop down enough to cover her chest. Kate was teasing me that with Cheryl describing all our exploits that I was getting hard. I put it off to "good memories" as Cheryl got on the floor in front of me, and pulled out my cock. "oooh you always said he was hung Cher" kate said. Then with my wifes mouth going up and down on my cock, Kate took her turn. I looked at Cheryl as if to ask if it was alright, she just smiled and she and Kate took turns. I was about to cum in Cheryls mouth as she got off and kate took over. "You need to taste him, you've not had his before" she told her sister. Recouping as the girls were now stripping I wasn't sure. Normally with other women Cheryl would start having sex with them, while men recouped but this was her sister. Kissing full on, groping each other and the two sisters in 69, scissoring, doing all the lesbian stuff I was hard again in minutes but didn't want to interrupt. I asked about them being sisters and they both said that their first sex was with each other for over a year. That did include using one of their mothers vibes to break each others hymen.

We fucked and fucked, and after the second week, Cheryl came to me and asked if I would just have sex the next week with Kate. I asked why and she said that Kate was fertile that week and wanted to have a baby. Kate really said she loved me and wanted me to father her baby. I couldn't believe I was hesitating, but Cheryl told me it was all OK with her. IN fact she wanted the two people she loved most to be together with her all the time. So Kate moved in permanently, will have a baby in 4 more months. Cheryl is obsessed with licking, fucking, sucking all over Kates pregnant body. To tell the truth I like it too. I just hope she looses weight after the baby. I said something about that to Cheryl and they already have the exercise and nutrition plan ready to go. Cheryl and I both are looking forward to sucking on Kates milking tits. They are already getting firmer and a bit bigger.