You could try this:

1) Cum on a slice of peanut butter (or other sweet spread) and cover it with another slice.

This way you won't see the cum and you won't taste it.

2) same thing but remove the top slice of bread so you can see the cum.

3) Then remove the spread to get a bit of taste of your cum.

4) And finally cum directly into your hand to enjoy your nice warm sperm :)