Ruan was a bit nervous about going to the Halloween party. He was 30 weeks pregnant with twins, and didn't realise how radically his body would change in the time between his first costume idea - a slutty nurse - and now. There was no way he could fit into his costume, let alone feel comfortable showing off that much skin in front of strangers in this stage of his pregnancy.
Thankfully, his partner Matt proposed a couple's costume of army uniforms. He already knew Ruan was nervous, so arranged to get shirts and pants custom designed to fit across his larger belly and widening hips. Ruan hesitated at first, but then appreciated how comfortable it felt when he tried it on in front of Matt at home.
At the party, Ruan and Matt became the talk of the party, with people loving the idea. Some joked that Matt was the drill sergeant who messed around with one of his cadets, Ruan.
Later on, Ruan felt himself feeling getting sweaty and uncomfortably warm from the party, so he slowly lifted his shirt to at least allow his belly to breathe. He felt a sigh of relief when he wandered towards a fan nearby and felt the cool breeze tickle his belly. Matt came up from behind, hugging his belly and kissing his shoulders. Ruan melted into his kisses, purring.
Ruan kept his shirt rolled up to show off his pregnancy belly, feeling a lot more at ease at the party. Matt had no hesitation in telling people "This is my partner Ruan. He's pregnant with my sons. I'm so fucking proud of him for doing this." which Ruan loved to hear, squeezing Matt's tight ass from behind.