And they're performing in person! Way better than video. They get charged up watching each other - watch each other jack off. They are obviously perfectly comfortable with their own bodies (and each other's) to get totally naked, bypassing the distraction of the initial akwardness
It definitely is not their first mutual wank-fest.
Especially now that they're as old as 17? If I was barely 11 yrs old when I got in my 1st (of a buh-zillion) 'sticky situation', then this is certainly not their first shot at cumming of age. I do agree tho that you should just crack some Wise and move on.
