Yes. Don't.
It is always risky, works with some plants but have never tried it with leopard.
Have you had runners off it?
When you hybridze these plants you cross pollinate the flowers and grow the seeds. You will get a great variation in the plants that grow so you pick the ones you want. I crossed leopard and ozelot but could not get the seeds to grow so gave some to someone more skilled at it. Some of the resultant plants were coming along nicely when a heater failed and cooked them. It is possible that this plant is from another cross, in which case you could have a nice new plant but unfortunatly it would be of no value if it does not wish to propagate. Tried Barry White?