Reply: My wife (29F) confessed she wants to fuck a bigger cock than mine

My wife (29F) and I (31M) got married at a young age and were each other’s firsts. A while ago, we had a good talk and the topic shifted to sex and sexual fantasies. She reluctantly confessed that she‘s becoming more and more interested what it would be like to get to fuck a big cock, since she‘s only had mine. She also admitted that her friends talk a lot about sex and she has the feeling she might be missing out on something. Especially since I‘m rather average down there and don‘t have a lot of stamina.
I‘d be lying if I said that I wasn‘t at least a bit shocked, but I was also very turned on. Later we started roleplaying and she made me watch her fuck herself with her bigger dildo, while she acted like it was another man taking her. We‘ve done this multiple times and she is being really serious about wanting the real thing. She even mentioned she would have a guy in mind.
Would also love to hear about the female perspective and experiences of this