For some reason, my childhood friends are so innocent that they want to have sex with me. No matter how much they ask me out, it's a bit difficult to have sex with them! However, my childhood friends don't seem to be like that, and recently they've been rubbing their breasts and kissing me, blatantly seducing me. When I see that, my crotch gets fully erect! Whatever happens, happens! And I start having sex with my childhood friends! But then, my childhood friends are more sexually active than I imagined, and they thoroughly milk my sperm...