I usually grow Sungold tomatoes and Red Rum runner beans.

This year I am growing Sungold and Piccolo tomatoes and Red Rum and Moonlight
runner beans.

Is it likely that the two different types of tomatoes and the two different
types of runners will lead to cross-pollination and hence odd tomatoes and odd
runner-beans.

PS Before someone says it: I am not concerned that the tomatoes and runners
will cross-pollinate between them .