Some important things for OP to consider:
-does your wife actually enjoy intercourse with you? (You mention she orgasms from clit stimulation only)
-does your wife WANT your penis to be any bigger (You are already big, with very large girth that may be uncomfortable for her)
I don’t know you or your wife, or your relationship. I only know what you have said in this thread.
That being said, it seems like your wife is very religious and has very conservative views when it comes to sexuality.
It may very well be that she is not interested in expanding your sex life together.
She seems to be against it and against you thinking about sex and sexuality a lot. What she calls “erotic”.
If that’s the case, everything you’re doing is probably harming your relationship and her view of you.
And you wanting to continue pumping might ultimately ruin your marriage or at least any respect your wife has for you.
Before you think about pumping or any other grand sexual plans, you need to have a LOT of open and honest discussions with your wife and see if she is open to learning more about sexuality and that anything you guys do together is to make your bond stronger and to bring you closer together.
STARTING: BPEL: 5.9in EG: 5.0in
2018: BPEL: 6.7in EG: 5.3in
NOW (start 1/2024): BPEL: 6.9in. EG: 5.4in