Is there a tag for characters with their dick being covered by the bottom of their shirt?
Sometimes it appears like it got stuck in there when they got hard, sometimes the character is actively trying to hide it in their shirt, and everything in between.
Examples:
https://e621.net/posts/1783150
https://e621.net/posts/1451538
https://e621.net/posts/1390282

i think these questions belong in https://e621.net/forum_topics/23085

anyway, erection_under_shirt has a few posts, but in most cases it seems to be not tagged quite so specifically, instead covered by erection_under_clothing and tenting

Thanks! And sorry that I didn't know about that forum topic.