Very wholesome hypnosis.
Like A can’t get to bed so B puts them in a trance and makes them sleepy.
Or A is really nervous about like a test or something so B relaxes them and brings them back up feeling ready.
Or A is in a fussy, crummy mood so B makes them a giggly dummy for a while to cheer up.
Or even something like A feeling self-conscious about their body so B makes them feel sexy and put on cute outfits for them.
All consentually, of course.
I could really go for just some casual, friendly hypno buddies.