Wait do you have a condom?' Often, it's assumed that the one with the penis will bring the condom when it's time to get sexy. I mean, they're the one wearing it, Oil based lube can cause some condom materials to break. Instead, use water based or silicone lube with condoms. Remember: Condoms do more than just help prevent pregnancy. Using condoms with new partners External Condoms: How to Use, Effectiveness, and Types Condoms & Lubricants