That really is one lovely cock, I especially liked the hard gistening oiled shot #27 "wow!" It was so very grab-b-able.
When you find your first man enjoy the oil but if it comes to anal, (which it shouldn't on your first experience. Try other slippery things the first time so you don't get taken advantage of) remember oil won't work with condoms, you need a water based lube. And condoms are a must.
But for slippery non penetrative fun oil is delightful, buy a plastic sheet from a house painting shop, oil gets every where! all the way to the bathroom........
I bet this exercise has ruined your concentration for your exam, tsk.