MIAA-879 Can you lend me your girlfriend for one night if I lend you mine? I did it with my senior from college just for fun, but he ended up coming inside my girlfriend... (despair) Riko Hashimoto

"Can I borrow your girlfriend for a night if you borrow mine?" That's what my senior said. I agreed just as a joke, but then he did something I'd never done before—he came inside me and now I'm addicted to his super-powered dick! He didn't say he was going to do that! Even after we had overwrite-style sex, my sperm and feelings couldn't reach Riko-chan. Don't look so pleased in front of me. I'll get better at sex, so please turn back to me... Riko-chan... Please...