LSKJFLKSDJDSF Ryuji's always breathless during sex despite having a lot of stamina. Ren would slump next to him, using his last slivers of strength to pull Ryuji close and kiss his clammy forehead. They would just bask in their bliss no matter how messy they are lol. Sometimes they would take a quick post-sex nap before getting up and cleaning themselves lol.