Muma Shoujo Sylvie

Silvy the lolita soulsucking succubus latches onto a freeter otaku. He's got the libido she wants and she's got the looks he loves, Silvy takes his virginity and then some, milking him into a blackout... The next day, the otaku wakes up as horny and virile as ever. "I've never met anyone with such a wealth of sperm and durability... Impeccable." From that day, awestruck Silvy milked him again and again and again......