Douse her chest in your cum

You obey her command and let loose a massive shot directly in between her tits. She jerks slightly in surprise but keeps a hold on her boobs so you can continue to unleash on her. The second and third shots follow the first straight into her cleavage. You then move around a bit to make sure you cover both tits as much as you can.

After a few extra pumps to ensure you're spent, you give both boobs a few taps with your spent manhood and smile at her. She smiles back and says "That's quite a load there!"

"Well, you have that effect on me," you respond.

"I sure do, don't I" she offers as she releases her breasts and tries to catch some of the cum as it runs down her stomach. She looks so good covered in your cum. You wished she let you do this more often. You quickly regain your senses and hand her a towel for her to clean up.

"Thanks." she says.

"No, thank you!" you reply.

"Of course! Happy birthday!"