You and Lan Xichen had been pretty chill about your relationship...but um...you underestimated how much of a pervert he really was, it was now Valentine's day and he got you chocolates which you didn't eat but give to Jin Ling and...later that night Lan Xichen pulled you into your shared room and...let's just say he had a really good time with you, Lan Wangji and Wei Wuxian who were in the other room playing Uno with the juniors could literally hear the headboard hitting the wall and because they are literal menaces they busted into you guys room, Xichen then abruptly stopped moving, looking back at them yet not even bothering to pull out, if anything he just winked at them before pressing a soft kiss to your cheek

Lan Xichen: ...Jiang Wanyin, we have visitors....

Jin Ling: JIUJIU?! WHA-

Lan Jingyi: ...Zewu-jun...

Lan Sizhui: ...I'm...never forgetting this....

Wei Wuxian: Hah! I knew my little brother had it in him!

Lan Wangji: ...Wei Ying...hush...

There was another moment of silence before Lan Xichen pulled the blanket over the both of you, whispering a small reminder

Lan Xichen: ...Jiang Wanyin. I said we have company...