I am interpreting your statement of procreative form to mean without any contraception and oral or sodomite practices.... correct?
Right - the “marital act” which defines the marital state and consummates marriage, is the one that brings the sexual organs of male and female together. Other kinds of fun in bed (if it’s not pressured/coerced, dangerous or disgusting) are OK as long as they are foreplay or afterplay, but don’t replace normal marital intercourse. (Gay writer Richard Rodriguez notes, mockingly, “They say gay sex is a no-no because gays don’t have a kosher place to stick it.” Actually, he’s right about that.)
And “marital” also means, not intentionally impaired as to its natural procreative potential.