Pregnant bruce who has grown bigger and softer in the past few months. He has the weirdest food cravings and most sensitive nose now. He gets hot flushes and more than not, Clark the superhuman furnace is relegated to the floor. But overall, he can always be found gently caressing his bump, talking to their baby in a low voice.
That is until he hits the horny phase of the pregnancy. And literally nothing can get him off of Clark's cock.
He'll beg to be fucked, sobbing desperately when Clark does it in the softest way as to not hurt the baby. Clark will spend hours fucking him, deep and slow, and even longer eating him out until Bruce finally passes out. Only to wake up and start begging again, mouthing at the super's cock over his sweatpants. By that point Bruce has stopped wearing clothes, they'll just restrict him from jumping on that dick at any given time.
When Clark has to go off and do Superman stuff, he knows Bruce understands but also Bruce will spend the rest of the day being this needy bratty slut.
So the moment his ears perk up, hearing someone call Superman, he's already tapping into superspeed and zipping around the room. Bruce can only tell that Superman left because of the whoosh of air left behind and the undoubtedly Clark-shaped dildo that is suddenly thrusted in his pussy. He falls into a chair with a gasp, legs spasming with the rush of heat through his core, pussy immediately dripping with wetness. He'll stay occupied until Clark gets back, making himself come over and over again. He'll wait Superman flies in and just sheathes himself into the prepped and loose cunt.
His distaste for touch only lasted 2 months into his pregnancy before he was hit by the massive need to be fused with his strong big lovely perfect husband.
He'd genuinely have breakdowns if Clark was not near him for long periods of time. The whole 7 months he was stuck to his husband like a pretty leech. Clark's big hands lifting his bump for him to alleviate pressure most of the times, Clark massaging his whole body until he was just a puddle of loose limbs on their bed, Clark hand feeding him the meager amount of foods that he managed to stomach without throwing up, Clark talking to his bump, and holding him in his top large arms and lap when another of Bruce's tantrums kicked in.
All in all Bruce would blame his stupidly increased libido on his husband, because who told him to be so perfect and hot and sexy and thoughtful all the damn time. Everything in Bruce wanted to gnaw on his husband and cannibalise him to show his love but because he cannot do that, his body chose the next best option, that is getting fucked by his husband until he reaches enlightenment or becomes one with him.
Morning, noon and night, all Bruce wanted to and did was fuck himself silly on Clark's cock, achieving new heights of pleasure everyday. Who knew Clark could give him so many orgasms with his stupid superpowers and then eat him out for an hour without breathing or fold him in a way to fuck his swollen cervix without harming the baby or that his tits could grow to a size where Clark can fuck them without having to hold them together.
They had so much sex during Bruce's pregnancy that the birth lasted only two hours because Bruce was as stretched out and loose as he needed to be for the baby to slip right out.