I was sailing with a date on Mahone Bay, NS. (It is 3 - 4 times larger than English bay, with lots of islands scattered about for good measure.)
She was down below, and I got feeling horny, so pulled my shorts down to my knees, while continuing to steer. (This boat had a wheel, not a tiller,)
She came up from below, saw me grinning like a Cheshire cat, but did not see why. So, she went up on the foredeck for a few minutes. On returing to the cockpit (no pun intended) she saw why I was smiling.
She immediately pulled off her bikini bottom and climbed on, with me reaching around her to steer.
We were in the deep throws of passion, about as far from land as we could be. But, I kept hearing a diesel engine. And it kept getting louder. As much as I tried, I could not find the source of the sound.
All of a sudden, my date said, "LOOK!!!"
About 200 yds away from us, heading towards us, was a cruise boat out of Chester, with about 6 guys on the foredeck with binoculars watching us go at it. Everyone of them was cheering and yelling for us to continue.
My date hopped off in a flash, and the fright made me shrivel up like a prune.