My tsundere best friend's girlfriend goes on a reverse night

"Let's all sleep together today in the river!" This was an excuse to seduce me! I pretended to be mistaken for my boyfriend and became a slutty guy! While sleeping in the river, my best friend's girlfriend probably mistakenly let out a sigh and thrust into her tongue... Slow piston so that your boyfriend won't find out! I came while feeling my boyfriend sideways. When he invites sex, he is good at being spoiled and becomes a nymphomaniac, but once the act is over, he is a cool tsundere. "Don't misunderstand me." It's amazing.