My sisters were given an aphrodisiac and their throbbing desires didn't subside, so they gave me a blowjob and ended up getting creampied raw.

The sisters (Mizushima Azumi, Anzu Yuu, Mizushima Ai, Haruhara Mirai) are given an aphrodisiac and become so horny that they can't stop, so they give blowjobs and end up getting creampied!