Motsu wrote...
I've searched for a few weeks now but I cannot for the life of me remember what this is called....
The only things I remember is that the male had a girlfriend, but ended up cheating with her sister(or it could have been the girlfriends daughter?). So the cheating sister was under his blanket going to town on him, and the actual girlfriend walks in. They end up kissing while the sister finishes him off underneath the blankets.
He is apologizing about it to her in a 'thought bubble'.
Any help?
I Know of this story but just to be certain , is it a Doujin you looking for or an animation ?
EDIT Are you sure it wasn't the girlfriends Mother cause you mention going to town on him before deciding on which story I think is You need to be certain of this ,where did it take place? (
1). the Boyfriends bedroom (
2). sick leave and visited by the Girlfriend (
3).Girlfriend introduced Boyfriend to her Mother?
I'll have a better understanding on which you are looking for