Finish the job

You stayed the course and jerked her cock faster, feeling her cock somehow get slightly bigger and her balls start to tighten as her ejaculate found its way out the tip of her cock.

"OHHHH FUCKKK!!!" Sofia screamed out as spurt after spurt of her hot baby batter erupted and coated your hand and her cock. It felt hot, and she had a powerful shot as a wayward shot or two got onto her upper chest and one even hit you and landed in your hair.

You slowed down your stroking as you saw Sofia collapse in her chair, riding in the post-orgasm bliss. Without looking at you she breathily says

"Thanks John, can't wait till next time...."

Leaving you to clean yourself off and leave her premises, leaving you to contemplate what you had just done.