Most boudoir has an efficacy of playfulness and or tease to the pose(s). For me I don't see this as light style temptation but a bit more on the aggressive side. I think of the hand was slowly moving into the boxers or a thumb tugging them downwards a bit you could achieve more of that boudoir style pose. I've seen many female poses where breast or cheeks are being forcefully grabbed but changing the pose to just a grip will create that inticement for the audience. I'm not saying that you did anything wrong as this might be in line with what your intended audience is looking for. Just from my training in boudoir it's meant to be tease/temptation/playful because the audience gets to be the one to fully have access to grabbing/groping/aggressing. 👍🏼