LEARASHI

You are unbelievable.
you have like EVERYTHING this kind of fic needs:
sinful age difference
arranged marriage (with bonus mpreg oh you clever thing you!)
uke/seme dynamics to the MAX
Sho waiting for Jun to be "ready" and omfg of COURSE Jun gets lured in like a moth to a flame; that bj scene oh lord.
friends-with-benefits (you're being so evil to my poor SA, but I forgive you because self indulgence transcends pairing preferences)
loyal servant (oh Neeeenn)
Sho looking after his injured Jun. Like of course Jun has to get injured, because how else are we going to get tender seme!Sho hovering over him in bed with all this pent up desire that he has to keep inside with the very last threads of his willpower?

A++ for self-indugence and troping like a champ. I admit defeat wholeheartedly.

ETA: The Aimiya. How could I have forgotten to mention the Aimiya tease at the end? You didn't write this for me personally, did You?