In the Name of Allah, the Most Gracious, the Most Merciful.
As-salāmu ‘alaykum wa-rahmatullāhi wa-barakātuh.
The same rule of paying kafara and qada will also apply to your wife.
Kissing will break the fast if one swallows the saliva of his or her partner. Kafara and qada will become Wajib on both partners. (Bahishti Zewar – Moulana Ashraf Ali Thanwi (RA) Vol. 1; Pg 336)
Ejaculation without consuming saliva will not break the fast. The wudu will be broken and ghusl will become compulsory. (Bahishti Zewar – Moulana Ashraf Ali Thanwi (RA) Vol. 1; Pg 72)
And Allah Ta’āla Knows Best
Mufti Saeed Ahmed Golaub
Islamic Solutions
Jamaica