These two guys go with their friends to an onsen and the taller one ends up being the bottom and all of the friends catch on because he has to be carried. There was also something to do with a tiger, it may have been on the cover or something
http://www.mangago.zone/read-manga/magic_mail_chocolate/sa/v01/c002/pg-1/
Oh yes it’s that one thank you:)
These two guys go with their friends to an onsen and the taller one ends up being the bottom and all of the friends catch on because he has to be carried. There was also something to do with a tiger, it may have been on the cover or something