Is it OK for a junior to hook up with a sophomore or freshman or is it just gross?

Is it OK for a junior to hook up with a sophomore or freshman or is it just gross?

The age difference seems pretty negligible (though one concern is it might be possible – though highly unlikely – for a freshman to still be below the age of consent).Whether hooking up is a good idea is another question, though. I would recommend the junior and the sophomore/freshman get to know each other better, before deciding on any further action.