What Gay Men Do In Bed

I’m scared of bottoming
Most gay men will consider bottoming at some time. However, the thought of doing it for the first time can be scary. Don’t let that put you off.
You may prefer to douche before bottoming, especially if indulging in deep ass play like fisting or with large dicks/toys. Use plain, clean water, preferably at body temperature. Avoid using shower attachments – the water pressure can be dangerous. You can get douche bulbs right here or from any good sex shop. Try not to go overboard and irritate the lining of your ass, as this can make you more vulnerable to STIs.
Get yourself relaxed with lots of foreplay like rimming or fingering. Some men do use amyl nitrate (poppers) to relax the muscles around their ass but there are two major health warnings. Poppers:

have been linked with an increased risk of HIV transmission
don’t mix with erection drugs like Viagra and may cause a heart attack.

Deep breathing is far safer, helps you to relax and relaxes the ass too.
Find a position that suits the size, angle and curvature of your partner’s dick. Any position where your knees are bent and drawn into your chest, whether you are kneeling, lying on your back or on your side, will probably lead to more comfortable sex, or will be a good position to start from.
There’s no such thing as too much lube. It just makes everything more slippery, which isn’t a bad thing. Use water- or silicone-based lubricants if you’re using latex condoms. Avoid any lube with nonoxynol-9. It irritates the lining of the ass, may make sex more painful and also increases your risk of HIV.
Look after your ass. You can’t get a new one. So know your limits. With time you may be able to take larger objects but there’s always...