A young Scottish couple

A young Scottish lad and lass were sitting on a low stone wall, holding hands, gazing out over the loch. For several minutes they sat silently. Then finally the girl looked at the boy and said,
"A penny for your thoughts, Angus."
"Well, uh, I was a-thinkin' Brenda...
perhaps it's aboot time for a wee kiss."
The girl blushed, then leaned over and kissed him lightly on the cheek. Then he blushed. The two turned once again to gaze out over the loch.
Minutes passed and the girl spoke again.
"Another penny for your thoughts, Angus."
"Well, uh, I was a-thinkin' perhaps it's aboot time for a wee cuddle, Brenda."
The girl blushed, then leaned over and cuddled him for a few seconds. Then he blushed. And the two turned once again to gaze out over the loch.
After a while, she again said, "Another penny for your thoughts, Angus."
"Well, uh, I was thinkin' perhaps it's aboot time you let me put my hand on your leg."
The girl blushed, then took his hand and put it on her knee. Then he blushed. Then the two turned once again to gaze out over the loch before the girl spoke again.
"Another penny for your thoughts, Angus."
The young man glanced down with a furled brow.
"Well, noo," he said, "noo, my thoughts are a wee bit more serious this time, Brenda."
"Really?" said the lass in a whisper, starting to fill with anticipation.
"Aye," said the lad, nodding.
The girl looked away in shyness, began to blush, and bit her lip in anticipation of this ultimate request.
Then he said, "Dae ye nae think it's aboot time ye paid me the first three pennies?"