My Chubby Sister

My sister Frances 27 is overweight and has very low self esteem and I keep telling she is gorgeous and she took no notice of me. I'm Adam 29 her brother she lives with, I not a handsome guy average is what I think of myself. I don't run myself down like Frances did and I make the best of every opportunity that comes my way. That's how I got my house at 23 and I've done it up over the time I've owned it. I'm a carpenter by trade, Frances went to university and is now a librarian and doesn't date as she didn't try. Anyway back when the Pandemic started we were home together all the time and I got bored as most of my renovations were done and only minor things left to do. But getting the materials was delated, so I had free time and a sister who wasn't doing much at all. I couldn't take her out to boost her confidence and I was feeling horny myself. Then reading stories on this site, I decided to seduce my sister Frances. As I saw it was win win, if she didn't let me fuck her at least I'll show her men were interested in her. If I did fuck her I would get my balls drained and also improve her self esteem. It was cabin fever I now think as I was stuck at home unable to go anywhere and anyway of getting sex warped my brain a bit. So I started trying to get Frances into my bed very subtly and didn't do any good. So I increased my tempo and took advantage of every chance that came my way. But the the direct approach was the best, she walked in the bathroom in morning after getting out of bed. I was in the shower and she was still sleepy and with her in her PJ's with the top open. As she was going to have a shower to wake herself up and hadn't realized I was already in there. She was shocked at first on walking in on me, but I decided to go for it and left the shower. Telling her to join me in the shower, She didn't move due to shock I think, thus allowing me to cuddle her and start undressing her. I didn't ask her for sex or anything just join me in the shower, with her top off and her pants loosened and then falling to the floor I led her into the shower. She slowly recovered her senses and just accepted showering with me as she was already in the shower. I washed her all over and got her to do me likewise and I got a hard-on which surprised her more than it shocked her. So I asked her to get me off, she started stroking my cock and I felt her up as she stroked. I then kissed her on her lips and decided to go for it and mounted her in the shower and she let me do anything I wanted. After the shower and her still in a stunned state I took her to my bed and fucked her again. Later on in the day she was still coming to terms with being fucked by her brother. I asked her for another fuck and she agreed, no hesitation at all. I had her sleep with me every night since and quite enjoy fucking Frances anytime it takes my fancy as they say. The result of our sexual relationship is Darryl (after our father) our son and the Pride and Joy of Annette and Frances herself. Our mother Annette wasn't exactly frilled on finding out only son and daughter had started fucking each other and her daughter was pregnant to her brother. Annette 48 war widow decided to move in with us and has since joined in a sexual relationship with us both. Annette is similar to Frances in body shape and size and she works from home and Frances leaves her to care for Darryl while she is at work. I'm quite happy with everything and don't date anymore as I have my woman now Frances and as a bonus I've got Annette.