Yes! And this is very important. Just like a lubricant, both of you will be in contact with the cream and this means that some of the effects may transfer to your partner too. One way to avoid this transference is to use condoms anytime you use an enhancement cream. However, you can not use a condom with anything that has oil in it so make sure you check out the ingredients list first. In most cases, skin on skin contact will be totally fine. If you are using a warming or tingling product, then this will likely feel very good for them too, but always check in with them first. They need to be aware that you are using one of these products to ensure that it will be safe for them too. Don’t forget that if you are having sex without a condom then the product will be in contact with their skin too. So you need to ensure that they can also use the product without a reaction.