Avoiding tan lines on your upper body and arms
Male models should avoid tan lines by tanning nude. When the job requires to get done, sometimes you cannot worry about who is around. If you do not feel comfortable wearing briefs in public or cannot find a location to tan nude outdoors, tan in the shortest shorts available or limit yourself to tanning booths.

If you have to be in the sunlight for extended periods of time, wear long pants. This is better to block sun from your legs completely than to develop a tan line from shorts. Be sure to add sunscreen on your arms if you are wearing a shirt. When showing up to a photo shoot with tan lines from a tank top it looks very bad.

Avoiding tan problems
If you must be in the sunlight for extended periods of time, wear long pants. This is better to block sun from your legs completely than to develop a tan line from shorts.

Tan Lines On Butt and Legs Frequent Problem
A frequent challenge in the past has been avoiding "shorts-type" tan lines — the untanned area on your legs that extends past your buttocks from wearing shorts in the sun.

Try to avoid tan lines from wearing shorts! This doesn't look appealing in photographs in which a model wears underwear and prevents him from showing his rear end.

Read how to correct tan lines on your legs using a tanning bed.

Here is how to get rid of tan lines on legs and butt
Tanning nude is always best. Nevertheless, wear the shortest shorts available whenever you tan outdoors if you cannot find a location to tan nude outdoors. Then follow correct tanning in a tanning salon. But, don’t tan your entire body. Just let the tanning bed's rays hit the untanned area!

1) Each time you go to the tanning bed, take four towels.
2) Lay one towel lengthwise on the bed so its an edge will meet the area of the back of your legs that is not tan and the opposite edge of the towel goes past your heals.
3) Lay another so it blocks the rays on your back from head to waist. (With these two towels, the rays should only hit the untanned area of your backside so that your ass is the only part that gets tan.)
4) Lay down on the towels carefully - so the towels do not move.
5) Place another towel so it covers your legs from the ankles up to the untanned area of your thighs.
6) Place the forth towel so it covers your face to your hips.
7) Cover your penis and scrotum.