A little bit of both

The mage hands forwards, trying to have their cake and eat it too. First they rush over to Diana, expertly unbuckle her belt and pulling her baggy pants down to her feet. In tandem they zip around her now bare legs down to Tyra, each hand digging into one side of the waistband of her tunic and slipping the garment down to the floor. There is no response from either woman, who are standing still and expressionless.

With some time remaining, the hands have a go at Tyra's frilly panties, dropping them down to her knees and handing it off to gravity, revealing a reddish hairy bush as they do so. Finally, they go back over to Diana, rince and repeat, bringing her plain panties to the ground, leaving both girls naked below the waist. It's an amusing sight, contrasting the still armored upper bodies with the nude lower ones as if they forgot to put on pants to work. The incorporeal hands move over to a new position the enact the finale.

The two women suddenly slump forward a little, shaking their heads from the effect of the stun. As they step forward to steady themselves, they feel their pants catch around their ankles, and as they both shout in embarrassment and surprise, the mage hands pounce, each delivering a hard slap to the adventurers' butts. The loud slapping noise echoes down the tunnel, while both women yelp and nearly lose their balance, only barely managing to remain upright as they awkwardly shuffle a few steps forward with their pants twisting around their feet to try and arrest their forward momentum.

”Tyra, wh- what just happened! What the hell is going on in this place?!"

Tyra fumbles around her legs, trying to cover her crotch while pulling up her panties and pants. "I dunno! I think we were stunned for a wee while there. And I believe we're the butt of some ancient mage's jokes and I dun like it!" She shakes her fist at the darkness ahead, while pulling her pants back up with the other, and Diana rebuckles her belt.

Meanwhile the two mage hands comically attempt to give each other an invisible high five, missing each other a couple times before managing to hit, followed by a barely audible suction sound, like a cork being pulled from a flask: The mage hands just popped out of existence, their limited spell duration well spent.