Follow this step by step.
1. Take the condom out of the wrapper.
2. Wash the spermicide out of it, to get rid of the possible chemical contamination.
3. Put the condom on a pecker.
4. Suck it.
5. Lick the condom afterwards.
Every bit of water that you drink after this will taste distilled compared to what you just did. If if doesn't, repeat steps 4 and 5 again.
LOL