Hide Erections - Underwear for Close Dancing Safely!

I am looking to get some underwear to help ensure I avoid accidental collisions while I'm dancing.

Obviously "collisions" are all well and good if you have the consent of your partner but when I'm just trying to show a good time for a partner who's never seen me before and this partner is not keen on being assaulted I think it probably would be best to have planned ahead.

Are there any underwears that are capably constructed for the purpose of "catching" one's erection and directing it in a safer direction than "out"? The only suggestiona I've found are sources telling highschoolers to just wear really tight briefs. Now that might be better than nothing but it is still problematic to have a mash of flesh the size of a goddamn baseball interfering with the scant inches between me and a partner.

In plain language, the solution I'm imagining would be some reasonably but comfortably tight boxer briefs that don't have a large pouch at the crotch but rather have a space to direct myself while flaccid alongside one leg so that when things wake up it safely grows down the length of my pants and is securely held from poking out and in the way.

Do shorts like this exist or do I need to become a seamstress?