He distracted his sister from her studies and also came inside her without permission

The husband calls his beloved and has no idea that he is already a cuckold

I complained to my brother, and he consoled me as best he could — with his dick, of course!

She agreed to give herself to her brother so he wouldn't interfere with her grades

Fucked his sister before her first date so she wouldn't be nervous

Sister got hungry before going to bed — I had to feed her sperm