VCF is a great second method, but it does tend to have a very foul odor and taste.
Another option is the Today Sponge, it is a spermicidal sponge that also soaks up the sperm.
The today sponge is effective IMMEDIATELY, no waiting 20 minutes like VCF.
ALSO, you could have oral sex play, and then when you are ready you could just stick a sponge inside of you.