Pants are probably underwear in this context. So he essentially goeshome comando
That's what I figured too. Pants is just short for underpants
I recently posted a comment questioning how tf does he forget his pant, but now it makes a little more sense. Still funny af xD
Here's the post for context http://www.mangago.zone/home/mangatopic/3740918/
パンツ or pantsu could mean underpants or trousers. actually it could even be panties or swimming trunks. i agree in this context it probably meant underpants.
Yeah, that makes certainly more sense. But the image of the uke walking home in a daze without pants is just making me laugh. XD
If he forgot his pants at Anaconda-kun's place every time, how did he even get home?
Did he just... flaunt it?