What way to get her to hang out on weekend's after the gym without being cheeky?

I'm a regular member in my local gym. Most weekend's when I'm training there is this woman who seems to train around the same time as myself. She is older than me we often speak in the car parking lot before going in to train but nevertrained with each other exchanged numbers. I know that she was checking me out cause she said to me she was watching me training legs. I am younger than her I would like to hang out with her as I know that she has her own place I secretly want to ask her have some fun with her but I don't know what way be the best way to ask her as we seem to get along without being cheeky asking her.

What way to get her to hang out on weekend's after the gym without being cheeky?
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