I... I suppose that could work. Here, why don't you try this one? It should fit you well enough since we're about the same size. Just make sure to change back into your own swim trunks afterward, okay?

Oh wow... I mean, um... That's... quite something. You really do look cute in it though, don't you agree? But yes, we should probably get changed back into your own clothes soon. Maybe after we take a quick break and have some snacks. Just stay right there while I go find us something to eat.