Is this fanart of Bucky and Sam? If so, that's really funny to me as the only ageplay docs I ever read was this all-out smutfest of OT7 Avengers porn. No plot, just porn. It was a wild ride. Just original MCU Avengers though, no Bucky or Sam.

No idea if this is indicative for ageplay but at least in that series the switch to ageplay was very conscious by all parties. I think they set certain days up for it and it ended at a certain time?