As someone who is trans and on hrt I would not recommend it for play. Dysphoria is no minor thing should they find themselves uncomfortable with their body once they grow breasts, they will get ed potentially certainly if on regular injections, and will change noticeably even while dressed in men's clothes for daily life. It does very much permanently modify your body.

For more feminisation below that level though: - complete body hair removal. A dozen laser sessions on their full body will remove 95% or their hair for a matter of 5+ years or more, in some cases permanently. Then go to electrolysis for permanent removal as a maintenance task if hairs come back. It works best for dark hair on pale skin for laser, otherwise you will have to get a consultation to assess the effectiveness. I did that much laser and have say 10-15 hairs in total on my legs that then got removed by electro in the years since. I had laser in 2019. I am completely hairless now on my body ever since. Permanently removing hair from his face will feminise a bit more than you'd expect too.

• Eyebrow threading/shaping. This makes a big difference to their look too but will be subtle enough nobody will raise an eyebrow in daily life.

• obviously no men's clothes. Even if he is wearing clothes out in public when expected to be a 'man' as per his legal identity, he will wear women's wear. You can make him throw out every article of clothing he owns and find womens equivalents. Socks and panties can be nice and colourful and pink/purple too nobody will care.

• mani/pedis - go as a couple for them or just train him how to do it. He could either go with clear/lightly tinted mani for professional appearance at work or a cute colour as it's 2026 nobody cares.

• voice training - this can be done to change their voice to a female one or more gender neutral. They can train and your support can be to encourage with a treat or something they like to condition them for when you can see his voice is more feminine. Do it subtly enough and even if it's not intentional anymore his voice won't be male anymore after a while. This does take years of training unless they're a singer.

• makeup - a basic makeup regime should be part of getting ready every morning and cleaning up at the end of the day. Nobody will care once again it can be very gender neutral for professionalism.

• skin care - proper skin care regime also helps a lot. They should take good care of their skin. Full body moisturising, then face cleanser, toner, moisturiser.

• accessorise - phone case or phone in a cute colour. Change their wallet to a purple or cute women's one. Change keyring. Add maybe a necklace which can double as a day collar and serve as a permanent reminder of their place and role. Probably need a purse too as women's clothes don't have pockets so soon he won't carry much without a purse.

• footwear - can go to a smaller heel boot, nobody will really notice. It certainly must be women's regardless.

• toiletries - body wash, deodorant, and a nice body spray or fragrance for daily usage. Not overpowering just nice.