3yr DS - started 'dry humping'

[rnmum]

my 3yr old DS is out of nappies but has started 'dry humping' on the sofa, our bed and in nursery. Our eldest never did it what can i do to stop it???? Help..

Usual advice to take him to GP to see if he has thrush/rash/undiagnosed UTI and go from there.

DS1 (3.9) 'wiggles' on his bears. Wiggling is fine, just for the bedroom though. Worth getting him checked out for rashes though.

DS1 (5.4) has 'wiggled' on his cuddly toys in bed for the last couple of years. The first time I realised he did this was when we were sharing a bed while staying at my sister's house!! It normally happens while he's asleep, in the early morning before he wakes up!!

thank you for your advice - will take him to the doctor to check for UTI.