When you get naked tell her:
'Let's race who will *** first...1,2,3 go...' then shout 'Yeah baby I win, you lose.'
or
When she complains just tell her 'Look, you had the same amount of time to ***, so don't complain'.
Seriously, it is all in your head. Do not think about it and don't stress about it. When you think about not cumming...you will trigger guess what? Cumming. And if all Zen fails, just unload a few hours/days before.
'Let's race who will *** first...1,2,3 go...' then shout 'Yeah baby I win, you lose.'
or
When she complains just tell her 'Look, you had the same amount of time to ***, so don't complain'.
Seriously, it is all in your head. Do not think about it and don't stress about it. When you think about not cumming...you will trigger guess what? Cumming. And if all Zen fails, just unload a few hours/days before.