Be prepared to push your limits and provide the biggest sample of cum for your nurse. Ready for me on my Milking Table, my experienced mouth and hands work on your big dick, building you up to edge and throb. You're doing really well! I softly encourage, try not to cum yet, I'll let you know when you can cum! Edging you closer and closer, when I decide that we've built up a big enough sample, I let you release all your cum into my mouth. Making sure every last drop is completely drained before I carefully expel the cum sample into the specimen container for testing.