with DD i didnt tear at all. i didnt really think of it at the time till they told me i hadnt and i was so happy lol. i didnt do anythign to prepare but when i was pushign the midwife held a hot washer on me between pushes so i dunno if that done anything. i had a epi so i coudlnt even feel the pushing part at the start and wasnt pushing prop but as soon as i got the push right she was out on 2 pushes. in saying that though i was stuck at 5cm dialated for hrs so i dunno if the slowly dialating helped stretch everything too.