Horse stretches and massages. It's good for keeping a horse in tip top shape especially when riding since aches and tense muscles can interfere with riding and cause injury.
I like to imagine that Equestrian club guys like Riddle, Silver and Sebek are devoted enough to horses to do this as well
Link: https://www.tiktok.com/t/ZTkJsEx7g/
Also this is just fun for any centaur and horse references and ideas. Especially centaur au's and such lol, having a trainer who helps with taur and horse health etc. Very fun ideas
Edit: forgot to add
I just know they all take great pride in teaching their horse to roll over and slowly helping follow along stretches and pampering their horse.
Riddle adds something extra for the coat that smells nice. For deeper aches he uses magic to help bolster his strength. He wants to be the one to take care of his horse.
Sebek and silver are particularly good about getting deeper aches on their horses due to their larger sizes and strength though both have trouble choosing scents and products for their horses coats. There's a surprising array of things to use. Riddle tends to help since he's better about research and picking out scented things (Sebek can be a bit out of his element when choosing scented things and silver tends to be bare bones with things like that)
I think they'd be very good to a centaur yuu but it's fun to imagine an nrc centaur au as well
