There are some practical aspects to having sex in one-on-one, group, public, or unusual situations which people rarely seem to talk about. Here are a few I have discovered.

- Despite my best efforts to learn how, and lots of practice, I am still unable to land a shot of semen on a face-sized target from a foot or so away with surgical precision. This is a problem because semen in the eyes really stings if you miss, and if it's with a first-timer, they may decide they hate it and you won't get a second chance to show how much you love them. I know this is far easier said than done, but if you plan to ejaculate on your partner's face, try and aim away from their eyes. If your partner is lying on their back, this can be achieved by approaching from above them (from the direction of their head, facing towards their feet) and positioning the end of your penis near their nose, pointing slightly down. Most of the semen should end up around their mouth, and any that overshoots will go over their chest and not into their eyes. If they're kneeling you can do the same thing standing over them, but aiming down from a different angle. Alternatively, you could also try coming in from the side.
I realise how bad this sounds, but I think it's really important to share hard-won knowledge.

- I feel nauseous every time I swallow semen (it doesn't happen very often). I have no idea why, but other people have told me the same thing. Remember this if you're doing it for the first time. I have heard that one young lady vomited several hours after ingesting a large amount semen (a number of mens' worth).

- Guys, if you've got longish pubic hair which you're planning to shorten with a pair of clippers, that the hairs can get caught in each other and they can take a while to dislodge. I discovered this to my cost when a young lady was forced to stop giving me a blowjob because she had a mouthful of hair, despite having showered between trimming and going out. I would suggest you trim a couple of days before your planned date to avoid this.

- Hot water seems to set semen stains. Cold water and Wool Mix detergent was highly effective in removing it from a black lace top which was inadvertently in the line of fire.

- In police forensic shows on television, the investigators hunt for semen stains using UV lights. I have had it confirmed for me by a former police detective that this really works, which might be worth remembering if you plan on wearing a garment which has been stained to a nightclub, rave party, or anywhere there may be UV lights.

- I find that my anus becomes distressed when it is played with. If you plan on trying anal play for the first time, make sure you're near some bathroom facilities and not in the middle of nowhere, just in case.