First is a Russian competition where three girls do various things to win over the "judge" (random guy picked from the audience). The last part of the competition has the girls doing a striptease routine, with two girls losing their tops. This was cut from a 20 minute video, the first 16 minutes were tame.
Second is the famous
Sexpo Amateur
Strip, from the Brisbane 2013 event. The footage was recorded on a monitor showing a playback but it's better than nothing.
Slick