The condom sucks if you need to rely on the anti-virus coating for protection. VivaGel is the coating - it would make more sense that the SP uses this as her lubricant to protect against the customer.
The coating is additional protection to the condom in case there is a condom failure due to human error or condom defects. There is no reason to think the condom is less effective than other latex condoms. With the dual protection the idea is that it offers even more protection than condoms that do not offer dual protection.
If the condom fails, the anti-viral coating is there to protect both partners from STIs.
If the SP wishes she could rub the lubricant from one of these condoms into the insides of her pussy.
