HELP

hi I rlly want to reread a manga I read a.while ago but I forgot the name. It abt how the seme is trying to make their first night in bed painless for the uke cuz the uke has low pain tolerance and a small body type while the seme is a big guy with a big dick.I havent read any hot and fluffy mangas that will have me blushin' and rolling in my bed and i miss that feeling so if anyone know pls reply or if you have other reccomendations that has the same concept please tell me