He climbs on behind her, tucking in close so his friend's (his friend!!) butt is braced between his knees, and he leans forward, using the slight advantage of his height to grip the staff between her legs on her bad side, and his other arm wraps around her chest like a seatbelt, making sure she can't lose her balance.

"Is this alright?" he asks, and his voice is close to her ear, soft and concerned.