Default Teen and Adult Romantic Relationship, but NOT INTEEN! i dont see any of that in Sims 3. That's because ACR is a Sims 2 mod.
Teen/Adult Romance & Mess Around. by PolarBearSims Posted 9th Nov 2017 at 11:02 PM - Updated 24th Aug 2019 at 5:49 PM by PolarBearSims: Patch.
My teen sim had a lusty, touchy-feely relationship with a girl but when he became an adult, she stopped "wanting" him. Now, they are best.
There's really only one hack that will easily allow you to do that and that's the inteenimater. It allows those types of relationships and also.