How Can I ask My girl for First touch I her boobs?

Scurfer
Got in relation for 3 month. I had got an Ex Girl friend. As a loyal partner I had confidently told her about our past. Days after Days we were being close in conversation as well as in relationship. I am kind of Shy and she is too. Got a first kiss from her last Thursday. I was too newbio to kiss her first time cause we both had it first experience. But off the topic she was kind of a partner who made the kiss perfectly. Now I asked her If I should Go and Kiss her and her Response was positive.
Now the thing is tomorrow is the day and Should I just move To touch her boobs.
I would ask her if she denied but anyone who can teach me how to ask a girl for Touching her boobs.
How Can I ask My girl for First touch I her boobs?
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