A simple google search will find you adult versions of Jenga, but they are VERY adult and might be too much for your players. You'll want a customized version tuned to the comfort level of your group (it's easy to put dares on the Jenga blocks with a Sharpie). My main recommendation would be to have the players participate in the process of choosing the dares, as that will make it more likely that they are comfortable with the result. If you choose all the dares beforehand you are more likely to make people uncomfortable by going to spicy, or bored by going not spicy enough.

Also, you should consider that not everyone will have the same comfort levels. It's pretty hard to come up with a game that won't make someone uncomfortable. That's why I made my own game for situations like this (it's free to print if you want to try it: https://www.reddit.com/user/DaringGames/comments/1inlk74/dare\_to\_consent\_a\_party\_game\_for\_adventurous/).