Dealing with Social SDK for Android extra weight

I was wondering if it’s possible to include sharing options such as Facebook and Twitter in my app without burdening the weight of my app.
It weights at the moment 3M, most of it from SDK of FB, Twitter and G+ I’ve included in it. Right now the app takes almost a minute to get downloaded.
For a simple app (this is it here – https://play.google.com/store/apps/details?id=koomix.lol_cats), it seems to me like a lot.