The day I was just his girlfriend. ~It all started with a little prank, and our friendship turned into a friends-with-benefits relationship~ (MUFR-004) MUFR-004

A group of male-female best friends. The girlfriend, Miko, is basically a shut-in. Because she's not good at socializing with other girls, she has very few female friends and has always hung out with her boyfriend. While at a restaurant, in a prank-filled atmosphere, the loser decides to play a "shower masturbation" punishment game. The person who suggested it loses and has to expose their penis and start masturbating in front of the two of them… Miko is also very interested in seeing her boyfriend masturbate for the first time… She even starts helping him masturbate, playing around with things like electric vibrators as a prank. Miko seems to get excited and is having a lot of fun, even licking her friend's penis and giving him oral sex. "I don't feel like this is my punishment…///" Even though the three of them have only been friends without any romantic feelings since yesterday, they couldn't resist and discovered their male-female friends were having sex. They didn't intend for it to be that way, but because of curiosity, they ended up in a male-female-male relationship. Indeed, friendship between men and women is untenable. The day their friendship crumbles.