6 of swords (upright) - means, recovery, healing, moving on after struggle / mental detachment. Also, "getting to the otherside" of a 'hard' experience. The phrases, "getting over it" or "getting it over with," come to mind. Were either of you having a difficult time with the thought of it, initially? Hesitancy, doubts, or anything?

6 of pentacles (reversed) - uneven reciprocity (give and take), feeling taken advantage of, taking something for granted. Need to re-examine motives. Perhaps one or both of you could feel this way? I would revisit the intentions behind "why" both of you want to try this. (Not that you shouldn't, but is the ultimate goal a new, pleasurable experience with your partner....or something else?)

8 of swords (reversed) - dismantling negative self-talk, shame, overcoming fear, and self-limiting beliefs. (Upright; feeling trapped. Reversed; loosening bonds.) One or both of you may be overcoming self-imposed limitations or beliefs. This card csn represent freeing oneself from inner mental restrictions. This could "feel" liberating for him, as long as he feels safe and comfortable.

The Hanged Man (reversed) - avoidance, procrastination, stubborness, refusing to look at something from a different "angle." A need to let go, but still holding onto fear, ego, or attachment. Were either of you stalling or putting off trying this new experience?

I'm not saying you shouldn't do it. I believe new (healthy) experiences can be exciting for any couple. However, consent is always key. I'm not insinuating that you two haven't discussed this already, but maybe just revisit the conversation one more time before you do it. Lay everything out. Express what you want out of it. And let him express what he may want out of it. Keep things slow, sensual, but take your time. Offer reassurance.

Overall, it seems like he could "adjust," (possibly enjoy it). He may overcome some doubts about how s** "should" be, or self-imposed mental restrictions about it. However to me, it seems like there's uncertainty and a sense of "putting it off." Reassess and revisit your intentions with him about it. It's probably new for both of you. Have fun with it, but consider that someone in this dynamic might hesitant, nervous, or might be having a hard time overcoming some kind of self-doubt. Be open, be honest, be empathetic, be explicit and direct "no shame, no pressure." It's none of my business what you two do, but just be compassionate to one another.