If the kid was asleep then what harm was done? If any of you have a sibling that is a year or two younger than you then it's pretty much 100% that your folks had sex with you in the room.

Kids are left alone in rooms by themselves all the time at that age; play time as well as nap time. And parents DO have sex during those times. Granted, if asked to babysit your brother, you shouldn't do that shit, especially not in the same exact room as the poor two year old kid. Second issue is we don't even know how old the daughter is, but if she's still living at home, more than likely not old enough to invite strange men over to have sex with them while babysitting... Eck, even if she is that's uncalled for.

OK. I have been the oldest child given unwanted responsibility for children that I had no part in making. This is a parental failure in forcing their kid to babysit, first. Second, not everyone loves their blood kin. I sure don't. That doesn't make me horrible, it just means I don't feel required to love people that I had no choice in being related to. If we get along and are in close contact, then yes I would love them. Third, no mention of paying said child to babysit. Fourth, believe me, teenagers will have sex any time they get the chance if they are active. It won't matter how close other people are. My only hope was the 2 yr old was asleep while they were having their fun. But other than that, she actually did nothing wrong. The parents, on the other hand, need to make sure they talk with her about taking precautions and next time, hire a friggin babysitter, not dump their crotch goblin on the other child.

Wow your kid is an asshole

I would kick her little ass. No, seriously. I would have went straight back home and beaten her. Does she not know where the two year old came from?

At least her baby brother won't remember it but, seriously, what was she thinking. She wasn't, her hormones did all the thinking for her, is the answer. In my teens i didn't have have any different rules except for one: if i got into a relationship, i'd make sure to be safe and i would not do it (and by 'it' i obviously mean sex) under my parents roof. It's not that an unreasonable and difficult rule to follow. Never have sex next to your baby brother, whom you should be watching after, should not be a rule; it should be common sense. FYL, OP.

She was following your directions, if badly..

This deserves extreme punishment

You parents sound untrustworthy of your daughter

*Sing songy voice* Someone's getting grounded! Someone's getting grounded! But seriously though, anyone else had that episode of Tom and Jerry pop into their heads about the oblivious babysitter?