UMD-1018 — I tried out the infamous, super-intense energy drink "Sensitivity-Boosting Sensitive Aphrodisiac" that everyone's talking about, and made my sister's and girlfriend's crotches explode!!

Recently, the boyfriend hasn't been feeling quite right about sex with his girlfriend. In order to make sex with her the best moment ever, he gets his hands on a certain aphrodisiac online. This mysterious, tasteless, and odorless liquid is rumored on social media to be a magic liquid that enhances libido! He buys it out of curiosity, but realizing it would be a bad idea to use it on his girlfriend right away, he decides to try it on his sister first. He secretly uses the aphrodisiac on his sister, and the effect is tremendous! It's even more effective than the rumors said! The experiment is a success, and he finally administers the aphrodisiac to his girlfriend! However, the aphrodisiac has a much stronger effect on her than expected, leading to an unexpected turn of events!