I hate these little search for things myself but I got to put one in. It's a pretty vanilla manga I think I've seen it on this site I'm not sure, but I'm just throwing this out there hopefully this net will catch something. Not a hundred percent sure what people look like who it was made by or when it was made so we're off to a good start. But the premises there's two boys they're friends, the mom tells the two little boys to go take a bath she joins them one little boy the best friend is already in a tub and the mom gets in the tub as well. The best friend can't hide his erection from the mom and the Mom feels kind of good about seeing his erection and about his feelings towards her, the son gets in the tub behind his best friend and knocks him into his mother penetrating her and is coming inside almost immediately and then his friend does this weird 1 2 3 exercise in the bathtub basically making his friend have sex with his mom and then he hops out of the bathroom it says I'll see you in a little bit and the mom's trying to comfort the boy who just came inside of her. I know they have sex later on and the son sleeps like a log as well I can't give you anything more then that.