in tents at crowded campsites, think we got a few people in the mood to judging by the similar noises in adjacent tents soon after we started having our fun
under the stars, on trails, forests, during.... nah too personal Ill leave that one, lets just say it was spontaneous and I had just met...them, I had used effort to get where they were (when most dont) so I got 'rewarded' even though I did it frequently